# Władysław I of Masovia

> Polish noble

**Wikidata**: [Q2456100](https://www.wikidata.org/wiki/Q2456100)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Władysław_I_of_Płock)  
**Source**: https://4ort.xyz/entity/w-adys-aw-i-of-masovia


## References

1. Sejm-Wielki.pl